The $100 NDR-NC40 headphones feature an ultralightweight headband and pressure-relieving urethane ear pads in order to ensure comfort over long periods of where (such as cross-continent/transatlantic flights). The noise-cancellation function is powered via a AAA battery, which is rated for 40 hours. The headphones stay true to their travel-friendly nature by folding up super compactly and including one of the smallest hard shell carrying cases we've seen.
Photo credit: Sony